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275136492 = 2231910911071
BaseRepresentation
bin10000011001100…
…011111111101100
3201011201101022110
4100121203333230
51030413331432
643145044020
76550423131
oct2031437754
9634641273
10275136492
11131342134
1278186610
1345003a77
1428780588
151924bdcc
hex10663fec

275136492 has 48 divisors (see below), whose sum is σ = 682035200. Its totient is φ = 86080320.

The previous prime is 275136487. The next prime is 275136493. The reversal of 275136492 is 294631572.

It is a super-3 number, since 3×2751364923 (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 275136492.

It is not an unprimeable number, because it can be changed into a prime (275136493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19317 + ... + 30387.

Almost surely, 2275136492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275136492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341017600).

275136492 is an abundant number, since it is smaller than the sum of its proper divisors (406898708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275136492 is a wasteful number, since it uses less digits than its factorization.

275136492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11206 (or 11204 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 275136492 is about 16587.2388298957. The cubic root of 275136492 is about 650.4032937081.

The spelling of 275136492 in words is "two hundred seventy-five million, one hundred thirty-six thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 19 38 57 76 109 114 218 228 327 436 654 1308 2071 4142 6213 8284 11071 12426 22142 24852 33213 44284 66426 132852 210349 420698 631047 841396 1206739 1262094 2413478 2524188 3620217 4826956 7240434 14480868 22928041 45856082 68784123 91712164 137568246 275136492